[tex]a) 1 \frac{5}{7} \times1.2 = \\ \\ b) 8 \frac{1}{3} \div 8.75 = \\ \\ c)(1 - ( \frac{1}{6} + \frac{3}{4})) \div \frac{1}{3} \times \frac{1}{5} = \\ \\ \\ \\ \\ \\ \\ \\ \\ [/tex]
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